Size (mm):60 mm x 85 mm x 13 mm |
The angular contact ball bearings for radial loads used in machine tools are non-separable bearings whose inner and outer rings cannot be separated. This type of bearing includes the types 78, 79U, 70U, 72, HSE9, HSE0, BNS9, BNS0, BNT9, BNT0 and BNT2.
For angular contact ball bearings, the imaginary straight line connecting the contact points between the balls and inner and outer rings forms an angle in the radial direction. The optimal contact angle can be selected to meet the required functionality, such as high speed capability or rigidity. The selectable contact angles are 15˚ (contact angle symbol "C"), 20˚ (no symbol), 25˚ ("AD"), and 30˚ (no symbol)
Bearing number | 5S-2LA-HSE912ADG/GNP42 |
Size (mm) | 60x85x13 |
Brand | NTN |
Bore Diameter (mm) | 60 |
Outer Diameter (mm) | 85 |
Width (mm) | 13 |
d | 60 mm |
D | 85 mm |
B | 13 mm |
C | 13 mm |
Angle (α) | 25 ° |
Weight | 0,19 Kg |
machines and other machine tools have been required to operate at much higher speeds. Bearings for main spindles therefore must meet the requirements of high speed and rigidity as well as accuracy. To meet such requirements, many our customers want the rolling element made of ceramic material. The features of
angular contact ball bearings with ceramic balls are
described below: A bearing with a limited temperature rise that are capable of ultra-high speeds
The specific gravity of ceramic material is one-that of bearing steel. In addition, the ball diameter of 5S-HSE type is smaller than that of the standard 70
type. For this reason, use of this type of ceramic balls bearing greatly reduces the influence of centrifugal force (ball sliding and spinning caused by gyratory moment).
As a result, these angular contact ball bearings inhibit temperature buildup and ensure ultra-high speed.
High bearing rigidity for high accuracy of manufactured products
The Young’s modulus of ceramic material is approximately 1.5 times that of bearing steel. The rigidity of these angular contact ball bearings is therefore greatly increased.
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